On Wed, 5 Jun 2024 09:42:45 -0700
Andrii Nakryiko [off-list ref] wrote:

Another ping. It's been two weeks since Jiri posted the last revision
that got no more feedback to be addressed and everyone seems to be
happy with it.

Sorry, there's been a lot going on.

This is an important speed up improvement for uprobe infrastructure in
general and for BPF ecosystem in particular. "Uprobes are slow" is one
of the top complaints from production BPF users, and sys_uretprobe
approach is significantly improving the situation for return uprobes
(aka uretprobes), potentially enabling new use cases that previously
could have been too expensive to trace in practice and reducing the
overhead of the existing ones.

I'd appreciate the engagement from linux-trace maintainers on this
patch set. Given it's important for BPF and that a big part of the
patch set is BPF-based selftests, we'd also be happy to route all this
through the bpf-next tree (which would actually make logistics for us
much easier, but that's not the main concern). But regardless of the
tree, it would be nice to make a decision and go forward with it.

I'll be talking with Masami about this later today.

-- Steve